Comparison guide
Canon imageFORMULA R40 vs Epson WorkForce DS-790WN: which should you choose?
Canon imageFORMULA R40 and Epson WorkForce DS-790WN compared under one framework. One recorded specification difference is ADF capacity: 100 sheets on the Epson WorkForce DS-790WN against 60 sheets on the Canon imageFORMULA R40. Specifications and their sources are recorded alongside.
Published: 2026-08-23 · Updated: 2026-09-21
Scanners verdict
Undocumented scoring basis · overall score and upgrade ranking withheld. The table records stored representative configurations; confirm the configuration and price on the merchant page before buying.
- Canon imageFORMULA R40: A USB document scanner with 40ppm/80ipm mono, a 60-sheet ADF, and ultrasonic double-feed detection.
- Epson WorkForce DS-790WN: A shared high-speed document scanner with 45ppm/90ipm, a 100-sheet ADF, Ethernet, and Wi-Fi.
- Undocumented quality and performance advantages are not ranked
- Specification field coverage (not accuracy): 100%
Choosing between Canon imageFORMULA R40 and Epson WorkForce DS-790WN starts with the real use case and the problem to solve, not with which product is newer. No independent laboratory test is implied.
Core specifications on one baseline
| Item | Canon imageFORMULA R40 | Epson WorkForce DS-790WN | Delta |
|---|---|---|---|
| Scanner type | One-pass duplex sheet-feed Manufacturer official product page · check date not recorded | Network one-pass duplex sheet-feed Manufacturer official product page · check date not recorded | Different |
| Optical resolution | 600 dpi Manufacturer official product page · check date not recorded | 600 dpi Manufacturer official product page · check date not recorded | Same |
| Simplex speed | 40 ppm Manufacturer official product page · check date not recorded | 45 ppm Manufacturer official product page · check date not recorded | +12.5% |
| Duplex speed | 80 ipm Manufacturer official product page · check date not recorded | 90 ipm Manufacturer official product page · check date not recorded | +12.5% |
| ADF capacity | 60 sheets Manufacturer official product page · check date not recorded | 100 sheets Manufacturer official product page · check date not recorded | +66.7% |
| One-pass duplex | Yes Manufacturer official product page · check date not recorded | Yes Manufacturer official product page · check date not recorded | Same |
| Maximum document | A4/Letter; long document up to 118 in Manufacturer official product page · check date not recorded | A4/Letter; long paper up to 240 in Manufacturer official product page · check date not recorded | Different |
| Interfaces | USB 2.0 Manufacturer official product page · check date not recorded | USB 3.0, Gigabit Ethernet, Wi-Fi, USB host Manufacturer official product page · check date not recorded | Different |
| Color | White | Black | Different |
| Region | KR | KR | Same |
| Model Code | 4229C001 | B11B265201 | Different |
16 of the 22 values in this table carry a source. The rest have no source on record, which is not the same as being wrong.
How to read Same, Different, No data, Unverified and Not applicable is documented on the configuration-level specification screen. If a condition you require is unknown, withhold the decision and match the exact model, sales region and configuration against the sources on that screen.
Differences recorded in the table
3 fields can be ranked on the same basis, listed by weight.
- ADF capacity · Epson WorkForce DS-790WN 100 sheets, Canon imageFORMULA R40 60 sheets (+66.7%)
- Duplex speed · Epson WorkForce DS-790WN 90 ipm, Canon imageFORMULA R40 80 ipm (+12.5%)
- Simplex speed · Epson WorkForce DS-790WN 45 ppm, Canon imageFORMULA R40 40 ppm (+12.5%)
The decision axes and the checking order for the whole category are on the Scanners comparison page.
The two products this comparison names
Match the listing against these models first. The recorded-field count is catalogue completeness, not product quality.
- Canon imageFORMULA R40 · Canon · model number 4229C001 · released 2019 · recorded fields 11/11
- Epson WorkForce DS-790WN · Epson · model number B11B265201 · released 2021 · recorded fields 11/11
Fields the two products share
3 recorded fields hold the same value for both stored representative configurations, so nothing in this list separates them.
- Optical resolution · 600 dpi
- One-pass duplex · Yes
- Region · KR
Who should choose Canon imageFORMULA R40
Canon imageFORMULA R40 leads no field in the table, so choose it on price and purchase terms. A USB document scanner with 40ppm/80ipm mono, a 60-sheet ADF, and ultrasonic double-feed detection.
Who should choose Epson WorkForce DS-790WN
Epson WorkForce DS-790WN leads the table on ADF capacity, Duplex speed, Simplex speed. A shared high-speed document scanner with 45ppm/90ipm, a 100-sheet ADF, Ethernet, and Wi-Fi.
How to read price and purchase availability
No merchant link is shown: neither product has an approved listing whose name and configuration match the catalogue, and AsKrs does not guess a destination.
- Canon imageFORMULA R40 · No verified purchase link currently available
- Epson WorkForce DS-790WN · No verified purchase link currently available
This comparison is built from published specifications and stored representative configurations. The use context, configuration checks, switching costs, and the scope and limits for Scanners are documented on the Scanners comparison page.